Silent group of lights moving overhead. Hovered briefly then reversed course and disappeared.

Walked outside my house just after dusk and noticed a silent group of lights traveling overhead from east to west. There were four lights in what seemed to be a upright square shape (2 white, 1 blue, and 1 red). Very bright colors that were quite beautiful. I think this is what attracted my eyes to the object. I had the impression that the object was quite close. It appeared to be 30-50 feet in altitude and 100-200 yards away. It also seemed to be quite small. Perhaps the size of a small cellphone held at arm’s length. After a few seconds, the object stopped and hovered briefly then reversed course quickly back to the east and disappeared behind a row of homes in our subdivision. I went back in the house to the upstairs bedroom to see if I could spot the object but it was gone.

What I found interesting was the complete silence of the object and how smoothly it moved through air. Weather conditions were clear, no clouds or wind with an ambient temperature of! ~60 degrees. It was definitely not an aircraft. A helicopter could have performed similar maneuvers but it was completely silent. The only thing that I can imagine it was would be some sort of remote control drone, but a completely silent one. Our home is quite close to a local municipal airport so I am familiar with the aircraft that land there. This was something completely different.